Las Vegas Sheriff Joseph Lombardo said on Wednesday that alleged Las Vegas Strip gunman Stephen Paddock spent decades acquiring ammunition as he lived a secret life before killing 58 at a country music festival on Sunday.
"What we know is Paddock is a man who spent decades acquiring guns and ammo and living a secret life," Lombardo said. "Anything that would indicate this individual trigger point, which would cause him to inflict this harm, we're not there yet."
Lombardo called Paddock's crime "well thought out."
Paddock had 23 firearms at his disposal in his hotel room. Law enforcement also uncovered 19 guns at his residence in Mesquite, Nevada, and five additional weapons near Reno.
Lombardo said that law enforcement has spent the last three days questioning those who know Paddock.
"We are trying to prove his intent or understand his intent and the history associated with this and whether or not he has any accomplices," Lombardo said.
Lombardo offered a more detailed timeline on Wednesday of what took place on Sunday, based on body cam video taken by various officers.
Lombardo said that Paddock fired the first shots at 10:05 p.m. PT, and the last shots at 10:15 p.m. Although police had reached the 32nd floor soon after Paddock stop shooting, it was not until 11:20 p.m. before police breached Paddock's hotel room.
Lombardo said that Paddock had enough ammunition to keep firing, and only a few of his weapons had jammed.
Paddock had four video cameras at his hotel room, Lombardo said. Two of the cameras were attached to a room service cart, one in his room's peephole and one inside his room. Lombardo said that the cameras were not in record mode during Sunday's incident.